WBC silver featherweight champion Robinson Castellanos (17-9, 11KOs) is training hard under the supervision of his manager Lorenzo Lopez for his upcoming bout against former champ Celestino “Pelenchin” Caballero (36-4, 23KOs), scheduled for April 20th at the Arena Roberto Duran in Panama. Castellanos is aware that he will be facing a very dangerous opponent, which is why he’s been training and practicing to master several special tactics to beat Caballero. Castellanos is sparring every day, at least 4 rounds, with super middleweight Marco Antonio Periban and with experienced fighter Fermin de los Santos.